uncertain [ʌnˈsɜ:tn] adjective [generally] incierto ( f incierta) [undecided, hesitant] indeciso ( f indecisa) it's uncertain whether they will accept the proposals no se sabe si aceptarán las propuestas in no uncertain terms de forma vehemente
Complétez la séquence avec la proposition qui convient. The car … repaired so we couldn't use it. had had been hadn't been